Socket and terminal means for pin-type lamp bulb connection



Sept. 20, 1960 R. C. WOOFTER ETAL SOCKET AND TERMINAL. MEANS FORPIN-TYPE LAMP BULB CONNECTION Filed Feb. 24, 1958 2 Sheets-Sheet 1INVENTOR5 ROBf/U c. I/OflfTfR 808M? 6. mil wmsm 0m BY ,4 714% Hill?ATTOBIV Y Sept. 20, 1960 R. c. WOOFTER EIAL 2,953,769

SOCKET AND TERMINAL MEANS FOR PIN-TYPE LAMP BULB CONNECTION Filed Feb.24, 1958 2 Sheets-Sheet 2 INVENTORS ROBERT C. WOO/Til? B08587 6.1MWINGEBDIN United States Patent SOCKET AND TERMINAL MEANS FOR PIN-TYPELAlVIP BULB CONNECTION Robert C. Woofter, Cortland, and Robert G. VanWingerden, Girard, Ohio, assignors to General Motors Corporation,Detroit, Mich., a corporation of Delaware Filed Feb. 24, 1958, Ser. No.717,003

Claims. (Cl. 339-191) This invention relates to socket and terminalmeans for connection of pin-type lamp bulbs for use with mounting panelsincluding panels having printed circuits thereon, and particularly, tosocket and terminal means adapted to receive a pin-type lamp bulb forconnection with a printed circuit on an insulating board or forconnection and mounting on a metal panel.

An object of this invention is to provide new and improved lamp socketand terminal means for use with a printed circuit on an insulatingboard.

Another object of this invention is to provide lamp socket terminalmeans adapted to receive a pin-type lamp bulb for connection with aprinted circuit on an insulating board.

Another object of this invention is to provide a terminal for a lampsocket that is adapted to receive a twopin miniature lamp, the socketterminal including a substantially V-shaped element with a funnelledentrance to a pin recess and with a tongue for locking the terminal in asocket and a flag adapted to engage an exterior face of the socket forengagement with a mounting panel.

Another object of this invention is to provide a terminal adapted tocontact a pin-type lamp-bulb socket and including a one-piece elementhaving at least one recess portion adapted to be complementary to onelamp bulb pin and having a tongue portion adapted to lock the terminalin place in the socket.

A further object of this invention is to provide a lamp socket assemblyfor use in combination with a pin-basetype lamp bulb and having terminalmeans insertable in a cavity of a lamp socket where pins provided on abase of the lamp bulb fit into contact portions on each of the terminalmeans contoured to be complementary to the pins on opposite sides of apartition adapted to separate and insulate terminal means from eachother and also adapted to serve as a stop engageable to limit insertionof the pin-base-type lamp bulb relative to the socket.

Further objects and advantages of the present invention will be apparentfrom the following description, reference being had to the accompanyingdrawings wherein a preferred embodiment of the present invention isclearly shown.

In the drawings:

Figure 1 is a fragmentary perspective View of a mounting panel and alamp bulb and socket assembly having terminal means in accordance withthe present invention.

Figure 2 is an end View looking into the Fig. 1 socket assembly havingterminal means in accordance with the present invention.

Figure 3 is a view taken in the direction of arrow 3 in Fig. 2 andincluding a lamp bulb inserted in the socket assembly.

Figure 4 is a cross sectional view taken along line 4-4 of Fig. 2.

Figure 5 is a perspective view of terminal means used in the socketassembly of Figures 1-4 in accordance with the present invention.

Figure 6 is a cross sectional elevational view of a socket assemblyusing a terminal means of Fig. 5 as well as an additional terminal meansalso for engaging a pin- 2,953,769 Patented Sept. 20, 1960 base-typelamp bulb inserted in an insulating socket in accordance with thepresent invention.

Figure 7 is an end view looking into the socket assembly in thedirection of arrow 7 in Fig. 6.

Figure 8 is a plan view of a blank of one of the terminal means used inthe socket assembly of Fig. 1 in accordance with the present invention.

Figure 9 is a side view of a terminal means formed from the blank ofFig. 8 and used in the socket assembly of Figures 6 and 7.

Figure 10 is an end view of terminal means taken in the direction ofarrow 10 in Fig. 9.

With particular reference to Fig. 1 there is shown a mounting panelgenerally indicated by numeral 12 and including an insulating board 12aon which there is provided a conducting material 12b and terminating insemi-circular or annular conducting portions 12d and 122, respectively.The annular conducting portions 12d and 12e are located on one side ofthe insulating board 12a and are located adjacent to a periphery of ahole or aperture 12f provided extending through the insulating board. Aplurality of pins such as 12g and 12h connected to the conductingmaterial such as 12d and 12c, respectively can be provided on theinsulating board for connection of the conducting material to a sourceof electrical power or into an electrical circuit such as may beprovided for an instrument cluster of a dashboard of a vehicle requiringillumination. The aperture 12 has a diameter of suflicient magnitude topermit insertion of a lamp bulb generally indicated by numeral 14 andhaving a glass envelope 14g inside of which there is provided a filament14 connected at opposite ends to wires 14a and 14b.

The lamp bulb 14 is fitted into a socket and terminal means assemblygenerally indicated by numeral 16 and including terminal means generallyindicated by numeral 18 inserted and retained in an insulating body orsocket 20 for mounting of the lamp bulb 14 as described below. Theinsulating body or socket 20 shown in Fig. 1 includes a flange 201having a face portion or surface 20s adapted to be positioned againstthe insulating board 12:: and/or conducting material 12d and 12a. Theflange 20 extends radially outwardly from the insulating body 20 and isadapted to provide a pair of slots 20y and 20z as shown in Fig. 2. Onlyone of these slots 20z is visible in the perspective view of the socketand terminal means as shown in Fig. 1. The slot 20z extends radially andlongitudinally of the insulating body 20 and a recess or notch 20nvisible in Figures 1 and 3, is formed by a lug or arm 201 having acurved surface portion 20m extending toward the slot 202. On one side ofnotch 2011 there is a wall portion or web 20w that interconnects theflange 20 with the lug 201. The purpose of the notch 202 is to provideresilience between the flange 20 and curved portion 20m of the lugs 201for engagement of the insulating panel 12a between the lug or arm 201and flange 20]. This engagement of the insulating board occurs when thelamp socket lug or lugs 201 are inserted into diametrically oppositecutout portions 121 provided extending radially outwardly from theaperture 12 The cutout portions 121 also serve to separate theconducting material portions 12d and 12:: from each other. As the lugs201 are inserted into the cutout portions 121, a r0- tation of theinsulating body 20 in a clockwise direction relative to the aperture 12in the panel of Fig. 1 effects a bayonet type locking of the insulatingbody 20 relative to the panel 12.

As the insulating body 20 is locked into engagement with the panel 12,the terminal means 18 are engaged against the printed circuit conductingmaterial portions 12d and 12e. Fig. 2 is a view looking toward thesurface 20s of the flange 20;! of the insulating body 20 and theterminal means 18* can be seen in an end view taken looking into achamber 22 formed inside the insulating body. The chamber 22 issubstantially cylindrical and has a pair of laterally outwardlyextending slots 22d and 22e provided for receiving an alignment orlongitudinal portion 18a of each of the terminals 18. Also clearlyvisible in Fig. 2 is a wall portion or annular shield 2Gc of theinsulating body 20 which is partially visible also in Fig. 1. Thisshield 20c has an outer diameter substantially equal to the diameter ofthe opening 12f in the panel 12 and the Wall portion 200 serves as aguide for positioning the insulating body 20 relative to the aperture12f. The wall portion 20c extends in opposite directions from each ofthe lugs 201 referred to in the description of the insulating body 20 ofFig. 1.

The insulating body 20 as visible in Fig. 2 further includes chamberportions 22a and 22b which extend downwardly from the bottom of thechamber 22 in the insulating body 20. Each of the terminals 18 isprovided with a main contact or body portion 1812 which is inserted intothe recesses or auxiliary chamber portions 22a and 22b. The surface 205of the flange 2th is provided with undercut portions or platforms 2tlpwhich extend radially outwardly from the chamber 22. These platformportions 20p are adapted to be complementary to and to provide a recessin which contact or flag portions 18 of each of the terminals 18 arepositioned. The specific relationship of these platforms 20p relative tothe flag portions 18 is readily seen in the side vieW of Fig. 3 taken inthe direction of arrow 3 in Fig. 2. It is apparent that the flagportions 18 are bent extending laterally and angularly relative to theterminal means 18 especially the alignment portions 18a of each of theterminals. This angular relationship of the flag portions 18 is alsoapparent in the perspective view of the socket and terminal meansassembly shown in Fig. 1 and the purpose of bending the flag portion 18is to assure resilient engagement of the flag portions relative to theprinted circuit conducting material portions 12d and 12a on the panel12.

One of the bayonet type locking lugs 201 and the specific flangestructure 20] having the slot 20z extending radially inwardly from theouter periphery of the flange can be seen in the side elevational viewprovided by Fig. 3. The lamp bulb 14 is shown inserted in the socket andterminal means assembly. A more detailed view of the socket and terminalmeans assembly in which the lamp bulb is mounted is provided by thecross sectional elevational view of Fig. 4.

Fig. 4 illustrates a two-pin type miniature lamp bulb for which thespecific socket and terminal means assembly of the present invention isprovided. The bulb 14 includes the filament 14 and filament wires orconnecting means 14a and 14b referred to in Fig. 1. The glass envelope14g is substantially spherical in shape and extending outwardly from theglass envelope at one side thereof there are lead-in wires or pins 14Aand 1 43 connected to the connecting wires 14a and 141) respectively forthe filament 14f. The glass envelope 14g is provided with an extension14c formed integral with the glass envelope Mg and providing a beadedglass seal 14s relative to each of the pins 14A and 148. A web portionlaw joins the glass seal portions 14s and provides a means or passagefor evacuating the interior of the glass enve lope 14g. The passage forevacuating the glass envelope is not part of the present invention andtherefore is not specifically illustrated in the drawings. However, theweb portion 14w provides a connection between the sealing portions 14sof the glass of the bulb and intermediate these sealing portions thereis a projection or stop portion 14x which is engageable against acentral partition or dividing wall 2dr provided extending integrallyfrom a cover or closed end 20; of the insulating body 20. The partitionor wall 201* is visible in Fig. 2 as well as'in Fig. 4 and separates andinsulates the auxiliary chambers 22a and 2212 from each other. It isapparent that the wall portion or partition 201' is locatedlongitudinally of the chamber 22 extending one way therein so that theauxiliary chamber portions 22a and 22b are in effect recesses into whichthe terminal means 18 are fitted. As visible in Fig. 4 the auxiliarychamber portion 22a has a lateral opening 20i extending radiallyoutwardly through the body portion 20 and forming a shoulder 20j againstwhich a locking leg portion or tongue 18 of the terminal means 18 isengageable. The alignment portion 18a of the terminal means 18 as wellas other portions of the terminal means are visible in part in Fig. 4but a better view is available in Fig. 5 where there is shown aperspective representation of the terminal means 18.

As noted earlier, the terminal means 13 include a flag portion 18visible in Fig. 5 together with a longitudinal or aligning body portion18a which is connected by a web 18w to one side portion or resilient legmeans 18v of the main body portion 18b of each of the terminals. Anopposite resilient leg means 18a of the body portion 13b is also clearlyvisible in the perspective View of Fig. 5. A bent end portion 182interconnects the legs 1311 and 18v to form the main body portion 18b.The locking leg portion or tongue 18 is bent laterally outwardly fromthe leg portion 18v as indicated in Figures 4 and 5. The leg portion ortongue 18f has its free end 18k extending outwardly from the leg portionliiv at a position remote from the interconnecting end portion 18c. Thusthe tongue 18j is integral with the leg portion 18v adjacent to the endportion 186 and the terminal means 13 can be easily inserted into theauxiliary chamber space such as 22a because the end 18c fits directlyinto the chamber space and the leg portion 18 has a slope permittinginsertion of the terminal means 13 into the auxiliary chamber 22.Resilience of the leg portions 18 permits the tongue to be temporarilypressed at its free end 18k toward the leg portion 18v. After the tongue18j and edge 18k pass the abutment or shoulder 20k of the socket body20, the edge 18k locks behind the shoulder 211k and engages surface 2iljfor resisting any attempt to remove the terminal means 18 frominsulating body 20. It is to be understood that the terminal means 18are easily removable from the insulating body 20 because the openingZtli extending laterally outwardly from the auxiliary chamber 22apermits a tool or even a finger to be pressed against the tongue 13j fortemporarily disengaging the edge 18k from the shoulder 20k of surface20f permitting removal of the terminal means from the insulating body.Each of the leg portions 18v and 18:: are substantially in engagementwith each other adjacent to their free ends remote from the end portion18a. The leg portions 18v and 18a form a substantially V-shaped orU-shaped structure which has the appearance of a teardrop when the pinssuch as 14A and 14B are not inserted or connected relative to theterminal means.

As visible in Figures 2 and 5, the terminal means 18 are provided withan abutting contact portion 18z formed as a channel or concave portionextending laterally along each of the legs 18L: and 18v. A funnel orentrance guide portion edge 18g is provided extending laterallyoutwardly centrally relative to each of the free ends of the legportions or resilient leg means 181! and 18v of the terminal means 18.The perspective view of Fig. 5 indicates a recess or concave grooves 18xformed below this guide portion edge 18g of each of the legs extendingcomplementary to each other on opposite sides of the lateral recessportion 1Sz. Thus the pins such as 14A and 1413 can be easily guided orinserted into the specific central location of complementary grooves 18xfor connection with the terminal means 18 resiliently retaining the pinstherebetween. The lateral channel 18z forms a guide in which pins suchas 14A or 14B can slide over surfaces 181m and 18W provided on legportions 18 and 18v respectively centrally toward the guide portionedges 18g and grooves 18x for funnelling a pin into proper engagementwith the terminal means 18.

In the lamp socket and terminal means assembly of Fig. 4, the lamp bulb14 is inserted with the pins 14A and 14B in engagement with the mainbody portion 18b of the terminal means 18. Due to lateral spacing of theauxiliary chambers 22a and 221), the terminal means 18 are spacedparallel to each other and insertion of the pins into the body portions18b of the terminal means 18 is accomplished with an easy movement ofthe lamp bulb into frictional engagement of the pin relative to thelongitudinal recesses 18x of the terminal means. The partition 20r actsas a limit or stop engaged by the bulb stop portion 14x or web 14w andthe bulb cannot be rotated or shifted once the pins are inserted intothe longitudinal recess portions 18x of the terminal means.

For electrically connecting a lamp bulb 14 with a printed circuit panel,the terminal means and socket assembly in accordance with the presentinvention utilizes terminal means 18 having identical structure 'forconnection with each of the pins 14A and 14B and each having flagportions 18 engageable with the printed circuit conducting materialportions 12d and 12s. The terminals as shown in Fig. 2 are maintained inparallel or aligned position relative to each other due to the specificarrangement of body portions 18a relative to the auxiliary chambers 22aand 2212 as well as the slots 22d and 22a. Thus the insulating body 20is secured by a bayonet type fastening to the printed circuit panel 12and fiag portions 18 of the terminals engage printed circuit conductingmaterial for establishing electrical connection through the bodyportions 18]) thereof adapted to be complementary to the two pinminiature-type lamp bulb shown in the drawings.

Since there are also entrances where a two pin miniature lamp bulb mustbe used for electrical connection with other than a printed circuitpanel, there is shown in Fig. 6 a terminal means and socket assembly 40in accordance with the present invention and adapted to be connected toa metal mounting panel indicated by numeral 42. A terminal meansgenerally indicated by numeral 18 in Fig. 6 is exactly like the terminalmeans illustrated in Fig. 5 and in Figures 1-4. However, since the panel42 is made of metal and can be used as a ground terminal for completinga circuit from a power source, the terminal means 18 has a flag portion18) directly in engagement with the panel 42. The panel has an openingor aperture 42 through which the socket 40 and a bulb 44 are insertedwith resilient lugs 401 having an outwardly extending central shoulderportion 40m adapted to be pushed through the aperture 42f. The shoulderportion 40m is greater in diameter externally than the peripheraldiameter of the aperture 42 and a flange 40 of the socket 40 locks thesocket relative to the panel 42 in conjunction with the lugs 401 andshoulder portions 40m. The terminal 18 again is provided with a tongueor locking leg portion 18 engageable against a shoulder 40k of thesocket 40 and an opening or lateral slot 40i is provided to form theshoulder 40k against which the tongue 18j is engageable.

Since the metal mounting panel 42 serves as a ground connection, theterminal means 18 as used in the socket and terminal assembly of Fig. 6is a ground terminal and an additional terminal means generallyindicated by numeral 48 is provided for use in the socket 40. The socket40 has a chamber portion 52 into which glass web 44w of bulb 44 isinserted and the insulating body or socket 40 has a central partition orwall 401' separating auxiliary chamber 40a from a longitudinal auxiliarychamber 40b. The auxiliary chamber portions 401: and 40b are connectedat one end with the chamber 52 and pins 44A and 44B extendlongitudinally into these auxiliary chambers and into engagement withthe terminal means 18 and 48.

The terminal means 48 is outlined in phantom in Fig. 6 and includes aresilient leg means or tongue portion 48f which is connected by a bentover end portion 48e to a main body portion 48b of the terminal means48. In the end view of Fig. 7 the socket 40 is illustrated as it appearswhen disconnected or in relation to the metal panel 42 for mounting. Theflange 40 and lugs 401 are clearly 'visible and a recess or platformportion 48p formed on a surface or a portion of the flange 40f can beseen in Fig. 7. The flag portion 18f of terminal means 18 is outlined inphantom in Fig. 7, and is engageable with the metal panel 42 as ispartially visible in Fig. 6. The partition or wall portion 402- has acentral depression or cavity 400 into which a glass tip or seal 44s canbe inserted until there is engagement of the partition or Wall 40;relative to the web 44w of the bulb 44 for limiting and stoppingmovement of the bulb during insertion thereof into the socket 40.

The terminal means 48 as outlined in phantom in Fig. 7 has a recessportion 48x extending inwardly toward the main body portion 48b of theterminal means 48 and a better understanding of the specific structureof the terminal means 48 can be attained by referring to Figures 8, 9and 10 which show only the terminal means 48 for use in accordance withthe present invention. In Fig. 8 there is shown a developed or plan viewof the terminal means 48 having main body portion 48b with pairs oflaterally extending wings 48v and 48w. The purpose of the wings 48v and48w is to provide a conductor connecting means whereby aninsulation-covered conductor or wire 481 outlined in Fig. 6 can besecured to the terminal means 48. The conductor 48z connects theterminal means 48 to a source of electrical power. The side wings 48ware bent over inwardly toward each other so as to crimp and engage aninsulating covering of the conductor 482 while the side wings 48v arecrimped inwardly toward each other for engaging a Wire or metalconducting portion of the conductor -48z in a well-known manner.

The intermediate end portion 48:: connects the body 48b to the resilientleg means or tongue portion 48 of the terminal means. The terminal means48 is illustrated further in Fig. 9 which is a side view of a terminalformed from the blank of Fig. 8. The recess or longitudinal cavity 48xwhich is complementary to a pin such as 44B is visible in Fig. 9 and thewings 48w and 48v are bent to positions transverse relative to the mainbody portion 48b of the terminal means 48. The end portion 48e joiningthe body portion 48b and resilient leg means 48 serves as a guide forthe pin such as 443 since the terminal means 48 as positioned in thechamber 40b permit the bent over end 48e to abut against a shoulder 4012of the socket 40. The free end 48n of the tongue or leg means 48 isresiliently locked behind a shoulder Min of the socket or body portion40 so that the terminal means 48 is retained in the socket 40 due to aninterlocking of the free end 4811 and bent over end 48e of the terminalmeans relative to the socket 40. The side wings 48w and 48v arepositioned longitudinally spaced from the end portion 482 in a passage401 as outlined in Fig. 6.

Fig. 10 shows an end view taken in the direction of arrow 10 in Fig. 9and illustrates the positioning of the side wings 48w as well as sidewings 48v relative to the main body portions 48b of the terminal means48. The bent over end portion 48e is shown connecting the resilient legmeans or tongue portion 48 to the body portion 48b. The recess 48x whichis complementary to a side of a pin such as 44B is also visible in Fig.10.

Among the advantages realized by using the terminal means and socket ofthe present invention is the simplicity in design of the socket adaptedto be easily inserted into an aperture of a mounting panel in a minimumof time and requiring a minimum of space. Specifically the socket 20 asillustrated in Fig. 3 is considerably shorter than the socket 40 in Fig.6 but the advantages of the terminal means such as 18 can be realized ineither of the sockets 20 or 40. It is to be understood that the terminalmeans 18 can be attached to the pins 14A and 14B so that the lamp bulbwould carry the terminal means 13 prior to insertion into the lampsocket 20. However, it is preferred that the bulb 14 and pins 14A and14B be detachable from the terminal means 18 so that the bulb 14 isreadily replaceable in the terminal means 18 of the socket 20 in theevent the filament 14f burns out. There is considerable reduction incost due to the use of terminal means 18 for connection with pin typelamp bulbs due to the standardization of the terminal means 18 for usein each of the auxiliary sockets 22a and 22b and also due to a savingsin the cost of the bulb 14- requiring no screw type base or bayonet typebase as has been provided previously by various electricalmanufacturers. The advantages in the two-pin-type miniature lamp bulbsper so are obvious as to savings in weight, space, ease of maintenanceas well as better electrical contact due to elimination of solderedconnections of the terminal wires or pins relative to a metal screw-typebase or bayonettype base of the lamp bulb per se. It is to be understoodthat the lamp bulb per se is not part of the present invention but thatthe socket and terminal means therefore are specifically adapted to beused with lamp bulb means having two pins projecting outwardlytherefrom. The partitions 20r and 401' as provided in the sockets orbody portions 20 and 40 respectively are adapted to separate andinsulate terminal means from each other and are also adapted to serve asa stop engageable to limit insertion of the pin base type lamp relativeto the socket.

While the embodiments of the present invention as herein disclosedconstitute a preferred form, it is to be understood that other formsmight be adopted.

What is claimed is as follows:

1. A two-pin lamp-bulb socket and terminal means adapted to be mounteddirectly into an aperture of a panel, comprising, an insulating bodyopen at one end and having a chamber divided into a pair of immediatelylaterally adjacent auxiliary portions by a central partition portion ofsaid body, means for mounting said body in the aperture of the panel,terminal means adapted to be locked into the auxiliary portions of thechamber and including a main body portion and a web portion connectingthe body portion with a laterally extending alignment portionsubstantially parallel to the main body portion of the terminal means,said insulating body having a slot extending laterally outwardly fromeach auxiliary chamber portion for receiving the alignment portion ofsaid terminal means, a flag portion of said terminal means attached tosaid alignment portion, said flag portion protruding laterally outwardlyfrom the open end of the chamber, and a resilient leg means includedwith the main body portion of said terminal means, said resilient legmeans having a longitudinal recess portion adapted to complement a pinof a pin-type lamp bulb.

2. A two-pin-type lamp bulb socket and terminal means adapted to supportand connect a two-pin-type light bulb relative to a printed circuit thathas a conducting portion adjacent to an aperture through an insulatingboard, comprising, an annular one-piece insulating body open at one endand having a chamber divided into a pair of immediately laterallyadjacent auxiliary portions by a central partition provided in saidbody, a terminal means having a body portion insertable in eachauxiliary chamber portion and including a pair of resilient legs eachhaving a longitudinal recess adapted to be complementary to a pin of thetWo-pin-type light bulb, a flag portion protruding laterally outwardlyfrom said terminal means adjacent to the open end of the chamber, analignment portion attached between said body portion of said terminalmeans and said flag portion and adapted to fit into an outwardlyextending slot provided in one side of said one-piece insulating bodyfor said terminal means, and an outwardly extending tongue projectingfrom each terminal means and engageable relative to an abutment providedimmediately adjacent thereto in said insulating body, said alignmentportion being provided for each of the terminal means for maintainingsaid terminal means parallel to each other and in alignment relative tosaid flag portion.

3. A dual-pin-light-bulb socket and terminal means adapted to supportand connect a dual-pin light bulb relative to an aperture of a mountingpanel, comprising, an annular insulating body open to receive thedual-pin light bulb at one end and having a chamber divided at anopposite end into a pair of adjacent parallel auxiliary portions, a wallportion of said insulating body separating the auxiliary portions of thechamber from each other, terminal means having a body portion insertablein separate chamber portions and including at least one resilient legportion having a longitudinally-extending centrallylocated recessadapted to be complementary to one side of a pin of the light bulb, aflag portion protruding laterally outwardly from one of said terminalmeans adjacent to the open end of the chamber and an outwardly extendingtongue projecting from said terminal means and engageable relative tosaid insulating body, said wall portion serving as a means for limitinginsertion of a dual-pin light bulb into the socket.

4. The dual-pin-light-bulb socket of claim 3 wherein said wall portionhas a recess adjacent to the open end of the chamber, the recess beingadapted to be complementary to a glass-Web-portion between pins andintegral with the glass envelope of the dual-pin-light bulb.

5. A combination, comprising, an insulating board hav ing conductingmaterial thereon on opposite sides of an aperture such as for a panel ofa vehicle requiring illumination and a socket assembly includingterminal means adapted to be electrically connected relative to saidconducting material, a base-less light bulb having a glass envelope,integral web portion, and only one pair of substantially parallel pinsprojecting in longitudinal and aligned relation from said web portion,an annular onepiece insulating body open at one end to receive thedualpin light bulb and having a chamber divided at an opposite end intoa pair of adjacent parallel auxiliary portions, a wall portion of saidinsulating body separating the auxiliary portions of the chamber fromeach other, terminal means having a body portion insertable in separatechamber portions and including at least one resilient leg portion havinga longitudinally extending centrally-located recess adapted to becomplementary to one side of a pin of said dual-pin light, a flagportion protruding laterally outwardly from one of said terminal meansadjacent to the open end of the chamber and an outwardly extendingtongue projecting from said terminal means and engageable relative tosaid conducting material, said wall portion having a recess adjacent tothe open end of the chamber, the recess being adapted to becomplementary to said web portion of said base-less dual-pin light bulb,said resilient leg portion having a longitudinally extending recesscomplementary at least in part to one said pin of said base-less lightbulb which thereby is maintained in parallel and aligned relation tosaid wall portion against which said web portion abuts.

References Cited in the tile of this patent UNITED STATES PATENTS1,968,480 Draving July 31, 1934 1,992,925 Lodge Feb. 26, 1935 2,017,940Bessey Oct. 22, 1935 2,023,190 Alden Dec. 3, 1935 2,741,750 Barre Apr.10, 1956 2,793,351 Heath May 21, 1957 2,794,962 Donato June 4, 19572,825,038 Woofter Feb. 25, 1958 FOREIGN PATENTS 454,211 Canada Ian. 18,1949

